. >> the company behind it, ec otricity is a clean energy firm and wants to challenge the concept that all grain cars are slow. >> they are not the kinds of things that normally, he would drive. they are super cars. they are as good as anything else on the road today. >> we brit have long harbored a the previous record, set by the grandson of sir malcolm campbell, a family name synonymous with speed records. the new record has to be officially ratified, but it is, they will have achieved it not with a bang, but with a whistle. >> it is not just speed reconnect with cars. in the 1950's, the u.s. began building a huge system of highways. before the concrete with even dry, the internet -- the interstate became an airey place. a series of killings makes the highway fragging. what author describes the uneasy relationship americans continue to have with their roads. >> really, the first person to be seen nationally as a highway killer was a down juvenile delinquent named charles stark weather. he was 17 and went on the road in 1958 with his underage girl friend, carol and fugate. -- carol ann fugate.